Title:
AIR VALVE
Document Type and Number:
Japanese Patent JP2014206241
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air valve which is usable in an inclined pipeline.SOLUTION: An air valve is installed in a pipeline 10 in which a liquid flows and exhausts a gas entering into the pipeline 10 to the exterior. The air valve includes: a valve box which is composed of a fixed valve box 2 fixed to the pipeline 10 and a movable valve box 3 which is provided so as to rotate relative to the fixed valve box 2, the valve box connected with the pipeline 10; an air valve chamber 4 which is provided in the movable valve box 3 and communicates with the pipeline 10; air holes 31, 32 which are provided at an upper part of the movable valve box 3 and allow the air valve chamber 4 to communicate with the exterior; valve seats 51, 52 which are provided at end part peripheries of the air valve chamber 4 side of the air holes 31, 32; and valve bodies 41, 42 which are housed in the air valve chamber 4 and are placed in contact with the valve seats 51, 52 by a buoyant force of the liquid to close the air holes 31, 32. The movable valve box 3 is rotated relative to the fixed valve box 2 thereby adjusting the valve seats 51, 52 so that the valve seats 51, 52 are horizontally placed.
Inventors:
KITAGAWA KAZUO
NAKAI TSUTOMU
NAKAI TSUTOMU
Application Number:
JP2013084691A
Publication Date:
October 30, 2014
Filing Date:
April 15, 2013
Export Citation:
Assignee:
SHIMIZU TEKKOSHO KK
International Classes:
F16K21/18; F16K31/18; F16K47/02
Domestic Patent References:
| JPS57175871U | 1982-11-06 | |||
| JPH07139655A | 1995-05-30 | |||
| JPS5782267U | 1982-05-21 |
Attorney, Agent or Firm:
Patent business corporation Minori patent firm
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